Sewing machine



FIG. 1 is an elevational view of the front of the sewing machine showing the claimed design.

FIG. 2 is an elevational view of one side thereof.

FIG. 3 is an elevational view of the back thereof.

FIG. 4 is an elevational view of the other side thereof

FIG. 5 is a top plan view thereof.

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof. 

CLAIM The ornamental design for a sewing machine, as shown and described. 